1. Used as a paper sizing agent in the paper industry to enhance the water resistance and impermeability of paper;

2. Soluble in water, it can condense fine particles and natural colloidal particles in water into large floccules, which can be removed from the water, so it is used as a coagulant for water supply and wastewater;

3. It is used as a turbid water purifying agent, as well as a precipitating agent, color fixing agent, filling agent, etc. Used as a raw material (astringent) for anti perspiration cosmetics in cosmetics;

4. In the fire protection industry, foam extinguishing agent is composed of baking soda and foaming agent;

5. Analytical reagent, mordant, tanning agent, oil decolorizing agent, wood preservative;

6. Stabilizers for albumin pasteurization (including liquid or frozen whole eggs, egg whites, or yolks);

7. Can be used as raw materials for the manufacture of artificial gemstones, high-grade ammonium alum, and other aluminates;

8. In the fuel industry, it is used as a precipitating agent in the production of chrome yellow and lake dyes, as well as as as a fixing and filling agent.

9. Used as an effective cross-linking agent for animal glue and can improve the viscosity of animal glue. It is also used as a curing agent for urea-formaldehyde adhesives, with a faster curing rate in 20% aqueous solution.